Wrench.



J. W. HURLEY. WRENCH.

APPLIGATION FILED DEC. 10. 1913,

Patented Jan. 5, 1915.

114E ""DPIS PETERS Cu. FHOTO-LITHQ. WASHINGTUN. D. C

UNITED @TATEE PATENT JOHN w. HURLEY, or PORTLAND, oaneoiv.

WRENCH.

inaaeeo.

Application filed December 10, 1913.

To all whom it may concern:

Be it known that I, JOHN W. HURLEY, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

My invention pertains to wrenches, and has for its object to provide a wrench having a fixed and a movable jaw, in which the movable jaw is sustained and supported as it reaches the outer limits of its movement where the greatest strain is placed upon it when in use.

The embodiment of my invention is disclosed in the accompanying drawing, in which Figure 1 is a side elevation of my improved wrench. Fig. 2 is an edge view of same showing the movable jaw. Fig. 3 is a fragmentary view showing a modification in which the eccentric disk is provided with a hook to receive and support it when swung outwardly from the movable jaw.

In the drawing, 1 designates the handle of a wrench provided with an enlarged head portion, upon which a fixed jaw 4 is formed whose gripping face inclines outwardly from the longitudinal axis of the wrench. The head portion is enlarged toward the side opposite the fixed jaw, the front edge of which is formed approximately at right angles from the inner extremity of said jaw; and transversely of the head portion is formed a shallow recess 2 which extends across and is coextensive with said enlarged portion, into which is fitted the facing plate 13. In said recessed portion is formed from the front, a further recess 12, which extends well across the head portion and expands laterally from the fixed jaw to the extremity of said enlarged portion, leaving at the rear a rib t through which the rivets are passed by means of which the plate 13 is secured.

In a kerf 5 formed in the outer edge near the rear end of the movable jaw is secured a spring 5 which is bent about the inner end of said movable jaw and seated against the face of the inner side of the recess 12. The resilient force of this spring tends to hold the movable jaw toward its outer limit, moving on its pivot 8.

Near the outer edge of the enlarged head Specification of Letters Patent.

Patented J an. 5, 1915..

Serial No. 805,732.

portion, upon the pivot pin 11 is mounted the eccentric disk 9 having in its periphery teeth 10 adapted to engage the similar teeth 10 formed along the outer edge of the movable jaw.

The inner face of the movable jaw is enlarged laterally so as to form at each side a rib 6 conforming to the lateral faces of the fixed jaw, and this rib which extends approximately to the front edge of the head portion, is bent outwardly and sharply to the front.

When the eccentric is rotated inwardly against the tension of the spring 5, it will bear upon and sustain the jaw when used upon small pipes or articles permitting the jaws to stand near together; but when it is rolled outwardly the jaw will move under the stress of spring 5, until it reaches the position shown dotted at 6*, when the disk 9 will be thrown away from it at 9 and the angular portions 7 of the ribs 7 will bear against the straight front edges 4 of the head portion where they will engage the shoulder t thereof. In thismanner a firm support will be afforded in the outer portion of the jaw where the strain upon it is greatest.

A slight modification is shown in Fig. 3 in which the angular ribs 7 are omitted, and the jaw is adapted to continue to bear upon the disk 9 as it moves to its outward limit where it bears against the hood 4: extended from the rib P.

Having described my invention, what I claim, is-

The combination with a wrench having a fixed jaw and handle provided with a recess,

a movable jaw pivotally mounted in said recess and provided with a serrated back rib, and a serrated disk eccentrically mounted on a pin in an extension of said recess so as to engage said serrated back rib, of a curveddisk-holding back wall 4; adapted to hold said disk when the movable aw is at its open limit and thus remove the strain from the pivot pin.

In testimony whereof, I aiiix my signature in the presence of two witnesses.

JOHN W. HURLEY. Witnesses:

E. E. I-IEGKBERT, E. EARL Fisnn.

topics of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

